CVE•Published 2026-10-14•Modified 2026-10-16•0 articles on news•5 live references•NVD data
CVE-2026-109438
Vulnerability data via NVD (ingested)
CVSS v3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS percentile
28
Exploit Prediction Scoring System · top 72% of all CVEs
Weaknesses (CWE)
Description
3proxy from 0.9.7 through 1.0.1, fixed in commit 206c923, contains an uninitialized stack memory disclosure vulnerability that allows unauthenticated attackers to leak stack bytes via the SOCKS4 reply path when the external-NAT option (-Ne) is configured. Attackers can send a client probe that fails the SOCKS version check to trigger a reply containing uninitialized bytes from the sin structure, exposing high bytes of a userspace pointer that weakens ASLR protections.
Timeline
Published 2026-10-14
Modified 2026-10-16
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-109438Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-109438Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-109438Censys host search filtered to this CVE id.
grep.app
CVE-2026-109438Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-109438GitHub code search for direct mentions.
Google dork
"CVE-2026-109438" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-109438 on GitHub.
We haven't classified any articles referencing CVE-2026-109438 yet. The external references above still apply.